With all the rumors that Apple plans to increase the next iPhone’s display to approximately 4-inches, and yesterday’s reports from Wall Street Journal confirming the rumors, there is much speculation regarding the exact dimensions and resolution of the upcoming display. Overdrive Design blog’s Niilo Autio pointed us to the mock-ups he did of how apps might benefit from a 4-inch display using a resolution of 640-by-1,152. The images below are compared to apps on the existing iPhone 4/4S design. The added screen real estate is especially noticeable in the Safari and Mail apps.